This alert expired on 13 July 2026 at 01:22 UTC. It is kept here as a record.
No stronger detection stands among the 28 recorded within 20 km of this point since 26 May 2026 — 13 others scored the same. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 12 at 9:12PM EDT until July 12 at 9:15PM EDT by NWS Greenville-Spartanburg SC
An estimated 154,342 people live within 50 km of this point.
Nearby, since 26 May 2026
- June 27, 2026 · score 43 · 7.3 km
- August 13, 2026 · score 43 · 8.1 km
- July 11, 2026 · score 39 · 8.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 34.6642, -81.8784 |
| Nearest City | Spartanburg (32 km) |
| Population Exposed | 154.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-13T01:12:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0b2dc7487e5b82cc11f60916ef43b8c5f5a3f3f4.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Spartanburg, SC; Union, SC |
| Headline | Severe Thunderstorm Warning issued July 12 at 9:12PM EDT until July 12 at 9:15PM EDT by NWS Greenville-Spartanburg SC |
| Expires | 2026-07-12T21:22:00-04:00 |
| SenderName | NWS Greenville-Spartanburg SC |
| HasExactCoords | true |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 10 February 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Spartanburg?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.